MYSQL_TYPE_TINY_BLOB=249,			MYSQL_TYPE_MEDIUM_BLOB=250,			MYSQL_TYPE_LONG_BLOB=251,			MYSQL_TYPE_BLOB=252,			MYSQL_TYPE_VAR_STRING=253,			MYSQL_TYPE_STRING=254,			MYSQL_TYPE_GEOMETRY=255};/* For backward compatibility */#define CLIENT_MULTI_QUERIES    CLIENT_MULTI_STATEMENTS    #define FIELD_TYPE_DECIMAL     MYSQL_TYPE_DECIMAL#define FIELD_TYPE_NEWDECIMAL  MYSQL_TYPE_NEWDECIMAL#define FIELD_TYPE_TINY        MYSQL_TYPE_TINY#define FIELD_TYPE_SHORT       MYSQL_TYPE_SHORT#define FIELD_TYPE_LONG        MYSQL_TYPE_LONG#define FIELD_TYPE_FLOAT       MYSQL_TYPE_FLOAT#define FIELD_TYPE_DOUBLE      MYSQL_TYPE_DOUBLE#define FIELD_TYPE_NULL        MYSQL_TYPE_NULL#define FIELD_TYPE_TIMESTAMP   MYSQL_TYPE_TIMESTAMP#define FIELD_TYPE_LONGLONG    MYSQL_TYPE_LONGLONG#define FIELD_TYPE_INT24       MYSQL_TYPE_INT24#define FIELD_TYPE_DATE        MYSQL_TYPE_DATE#define FIELD_TYPE_TIME        MYSQL_TYPE_TIME#define FIELD_TYPE_DATETIME    MYSQL_TYPE_DATETIME#define FIELD_TYPE_YEAR        MYSQL_TYPE_YEAR#define FIELD_TYPE_NEWDATE     MYSQL_TYPE_NEWDATE#define FIELD_TYPE_ENUM        MYSQL_TYPE_ENUM#define FIELD_TYPE_SET         MYSQL_TYPE_SET#define FIELD_TYPE_TINY_BLOB   MYSQL_TYPE_TINY_BLOB#define FIELD_TYPE_MEDIUM_BLOB MYSQL_TYPE_MEDIUM_BLOB#define FIELD_TYPE_LONG_BLOB   MYSQL_TYPE_LONG_BLOB#define FIELD_TYPE_BLOB        MYSQL_TYPE_BLOB#define FIELD_TYPE_VAR_STRING  MYSQL_TYPE_VAR_STRING#define FIELD_TYPE_STRING      MYSQL_TYPE_STRING#define FIELD_TYPE_CHAR        MYSQL_TYPE_TINY#define FIELD_TYPE_INTERVAL    MYSQL_TYPE_ENUM#define FIELD_TYPE_GEOMETRY    MYSQL_TYPE_GEOMETRY#define FIELD_TYPE_BIT         MYSQL_TYPE_BIT/* Shutdown/kill enums and constants */ /* Bits for THD::killable. */#define MYSQL_SHUTDOWN_KILLABLE_CONNECT    (unsigned char)(1 << 0)#define MYSQL_SHUTDOWN_KILLABLE_TRANS      (unsigned char)(1 << 1)#define MYSQL_SHUTDOWN_KILLABLE_LOCK_TABLE (unsigned char)(1 << 2)#define MYSQL_SHUTDOWN_KILLABLE_UPDATE     (unsigned char)(1 << 3)enum mysql_enum_shutdown_level {  /*    We want levels to be in growing order of hardness (because we use number    comparisons). Note that DEFAULT does not respect the growing property, but    it's ok.  */  SHUTDOWN_DEFAULT = 0,  /* wait for existing connections to finish */  SHUTDOWN_WAIT_CONNECTIONS= MYSQL_SHUTDOWN_KILLABLE_CONNECT,  /* wait for existing trans to finish */  SHUTDOWN_WAIT_TRANSACTIONS= MYSQL_SHUTDOWN_KILLABLE_TRANS,  /* wait for existing updates to finish (=> no partial MyISAM update) */  SHUTDOWN_WAIT_UPDATES= MYSQL_SHUTDOWN_KILLABLE_UPDATE,  /* flush InnoDB buffers and other storage engines' buffers*/  SHUTDOWN_WAIT_ALL_BUFFERS= (MYSQL_SHUTDOWN_KILLABLE_UPDATE << 1),  /* don't flush InnoDB buffers, flush other storage engines' buffers*/  SHUTDOWN_WAIT_CRITICAL_BUFFERS= (MYSQL_SHUTDOWN_KILLABLE_UPDATE << 1) + 1,  /* Now the 2 levels of the KILL command */#if MYSQL_VERSION_ID >= 50000  KILL_QUERY= 254,#endif  KILL_CONNECTION= 255};enum enum_cursor_type{  CURSOR_TYPE_NO_CURSOR= 0,  CURSOR_TYPE_READ_ONLY= 1,  CURSOR_TYPE_FOR_UPDATE= 2,  CURSOR_TYPE_SCROLLABLE= 4};/* options for mysql_set_option */enum enum_mysql_set_option{  MYSQL_OPTION_MULTI_STATEMENTS_ON,  MYSQL_OPTION_MULTI_STATEMENTS_OFF};#define net_new_transaction(net) ((net)->pkt_nr=0)#ifdef __cplusplusextern "C" {#endifmy_bool	my_net_init(NET *net, Vio* vio);void	my_net_local_init(NET *net);void	net_end(NET *net);void	net_clear(NET *net);my_bool net_realloc(NET *net, unsigned long length);my_bool	net_flush(NET *net);my_bool	my_net_write(NET *net,const char *packet,unsigned long len);my_bool	net_write_command(NET *net,unsigned char command,			  const char *header, unsigned long head_len,			  const char *packet, unsigned long len);int	net_real_write(NET *net,const char *packet,unsigned long len);unsigned long my_net_read(NET *net);/*  The following function is not meant for normal usage  Currently it's used internally by manager.c*/struct sockaddr;int my_connect(my_socket s, const struct sockaddr *name, unsigned int namelen,	       unsigned int timeout);struct rand_struct {  unsigned long seed1,seed2,max_value;  double max_value_dbl;};#ifdef __cplusplus}#endif  /* The following is for user defined functions */enum Item_result {STRING_RESULT=0, REAL_RESULT, INT_RESULT, ROW_RESULT,                  DECIMAL_RESULT};typedef struct st_udf_args{  unsigned int arg_count;		/* Number of arguments */  enum Item_result *arg_type;		/* Pointer to item_results */  char **args;				/* Pointer to argument */  unsigned long *lengths;		/* Length of string arguments */  char *maybe_null;			/* Set to 1 for all maybe_null args */  char **attributes;                    /* Pointer to attribute name */  unsigned long *attribute_lengths;     /* Length of attribute arguments */} UDF_ARGS;  /* This holds information about the result */typedef struct st_udf_init{  my_bool maybe_null;			/* 1 if function can return NULL */  unsigned int decimals;		/* for real functions */  unsigned long max_length;		/* For string functions */  char	  *ptr;				/* free pointer for function data */  my_bool const_item;			/* 0 if result is independent of arguments */} UDF_INIT;  /* Constants when using compression */#define NET_HEADER_SIZE 4		/* standard header size */#define COMP_HEADER_SIZE 3		/* compression header extra size */  /* Prototypes to password functions */#ifdef __cplusplusextern "C" {#endif/*  These functions are used for authentication by client and server and  implemented in sql/password.c*/void randominit(struct rand_struct *, unsigned long seed1,                unsigned long seed2);double my_rnd(struct rand_struct *);void create_random_string(char *to, unsigned int length, struct rand_struct *rand_st);void hash_password(unsigned long *to, const char *password, unsigned int password_len);void make_scrambled_password_323(char *to, const char *password);void scramble_323(char *to, const char *message, const char *password);my_bool check_scramble_323(const char *, const char *message,                           unsigned long *salt);void get_salt_from_password_323(unsigned long *res, const char *password);void make_password_from_salt_323(char *to, const unsigned long *salt);void make_scrambled_password(char *to, const char *password);void scramble(char *to, const char *message, const char *password);my_bool check_scramble(const char *reply, const char *message,                       const unsigned char *hash_stage2);void get_salt_from_password(unsigned char *res, const char *password);void make_password_from_salt(char *to, const unsigned char *hash_stage2);char *octet2hex(char *to, const char *str, unsigned int len);/* end of password.c */char *get_tty_password(char *opt_message);const char *mysql_errno_to_sqlstate(unsigned int mysql_errno);/* Some other useful functions */my_bool my_init(void);extern int modify_defaults_file(const char *file_location, const char *option,                                const char *option_value,                                const char *section_name, int remove_option);int load_defaults(const char *conf_file, const char **groups,		  int *argc, char ***argv);my_bool my_thread_init(void);void my_thread_end(void);#ifdef _global_hulong STDCALL net_field_length(uchar **packet);my_ulonglong net_field_length_ll(uchar **packet);char *net_store_length(char *pkg, ulonglong length);#endif#ifdef __cplusplus}#endif#define NULL_LENGTH ((unsigned long) ~0) /* For net_store_length */#define MYSQL_STMT_HEADER       4#define MYSQL_LONG_DATA_HEADER  6#endif